<template>
  <div class="app-container">
    <el-form
      :model="queryParams"
      ref="queryRef"
      :inline="true"
      v-show="showSearch"
      label-width="68px"
    >
      <el-form-item label="题目类型" prop="questionType">
        <el-select
          v-model="queryParams.questionType"
          placeholder="请选择题目类型"
          clearable
          style="width: 120px"
        >
          <el-option
            v-for="dict in question_type"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="题目所属" prop="type">
        <el-select
          v-model="queryParams.type"
          placeholder="请选择题目所属"
          clearable
          style="width: 120px"
        >
          <el-option
            v-for="dict in exam_question_type"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="题目难度" prop="difficultyLevel">
        <el-select
          v-model="queryParams.difficultyLevel"
          placeholder="请选择题目难度"
          clearable
          style="width: 120px"
        >
          <el-option
            v-for="dict in difficulty_level"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="审核状态" prop="auditStatus">
        <el-select
          v-model="queryParams.auditStatus"
          placeholder="请选择审核状态"
          clearable
          style="width: 120px"
        >
          <el-option
            v-for="dict in sys_common_status"
            :key="dict.value"
            :label="dict.label"
            :value="dict.value"
          />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery"
          >搜索</el-button
        >
        <el-button icon="Refresh" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="Plus"
          @click="handleAdd"
          v-hasPermi="['business:question:add']"
          >新增</el-button
        >
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="Edit"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['business:question:edit']"
          >修改</el-button
        >
      
      </el-col>
      <right-toolbar
        v-model:showSearch="showSearch"
        @queryTable="getList"
      ></right-toolbar>
    </el-row>

    <el-table
      v-loading="loading"
      :data="questionList"
      @selection-change="handleSelectionChange"
    >
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="id" align="center" prop="id" />
      <el-table-column label="题目类型" align="center" prop="questionType">
        <template #default="scope">
          <dict-tag :options="question_type" :value="scope.row.questionType" />
        </template>
      </el-table-column>
      <el-table-column label="题目所属" align="center" prop="type">
        <template #default="scope">
          <dict-tag :options="exam_question_type" :value="scope.row.type" />
        </template>
      </el-table-column>
      <el-table-column label="题目内容" align="center" prop="questionContent" />
      <el-table-column label="题目难度" align="center" prop="difficultyLevel">
        <template #default="scope">
          <dict-tag
            :options="difficulty_level"
            :value="scope.row.difficultyLevel"
          />
        </template>
      </el-table-column>
      <el-table-column label="正确答案" align="center" prop="correctAnswer" />
      <el-table-column
        label="答案解析"
        align="center"
        prop="answerExplanation"
      />
      <el-table-column label="主题" align="center" prop="subject" />
      <el-table-column label="题目分值" align="center" prop="score" />
      <el-table-column label="题目来源" align="center" prop="source" />
      <el-table-column label="审核状态" align="center" prop="auditStatus">
        <template #default="scope">
          <dict-tag
            :options="sys_common_status"
            :value="scope.row.auditStatus"
          />
        </template>
      </el-table-column>
      <el-table-column
        label="操作"
        align="center"
        class-name="small-padding fixed-width"
        fixed="right"
        width="180"
      >
        <template #default="scope">
          <el-button
            link
            type="primary"
            icon="Edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['business:question:edit']"
            >修改</el-button
          >
          <el-button
            link
            type="primary"
            icon="Delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['business:question:remove']"
            >删除</el-button
          >
          <el-button
            v-if="scope.row.auditStatus === '0'"
            link
            type="primary"
            icon="Upload"
            @click="handlePublish(scope.row)"
            v-hasPermi="['business:question:publish']"
            >发布</el-button
          >
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total > 0"
      :total="total"
      v-model:page="queryParams.pageNum"
      v-model:limit="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改题目对话框 -->
    <el-dialog :title="title" v-model="open" width="900px" append-to-body>
      <el-form
        ref="questionRef"
        :model="form"
        :rules="rules"
        label-width="80px"
      >
        <el-form-item label="题目类型" prop="questionType">
          <el-select v-model="form.questionType" placeholder="请选择题目类型">
            <el-option
              v-for="dict in question_type"
              :key="dict.value"
              :label="dict.label"
              :value="dict.value"
            ></el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="题目所属" prop="type">
          <el-select v-model="form.type" placeholder="请选择题目所属">
            <el-option
              v-for="dict in exam_question_type"
              :key="dict.value"
              :label="dict.label"
              :value="dict.value"
            ></el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="题目内容" prop="questionContent">
          <el-input
            v-model="form.questionContent"
            type="textarea"
            placeholder="请输入内容"
          />
        </el-form-item>
        <el-form-item label="题目难度" prop="difficultyLevel">
          <el-select
            v-model="form.difficultyLevel"
            placeholder="请选择题目难度"
          >
            <el-option
              v-for="dict in difficulty_level"
              :key="dict.value"
              :label="dict.label"
              :value="dict.value"
            ></el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="正确答案" prop="correctAnswer">
          <template v-if="form.questionType === 'multiple-choice' || form.questionType === 'single-choice'">
            <el-input
              v-model="form.correctAnswer"
              type="textarea"
              placeholder="正确答案将根据选项自动生成"
              disabled
            />
          </template>
          <template v-else>
            <el-input
              v-model="form.correctAnswer"
              type="textarea"
              placeholder="请输入内容"
            />
          </template>
        </el-form-item>
        <el-form-item label="题目分值" prop="score">
          <el-input v-model="form.score" placeholder="请输入题目分值" />
        </el-form-item>
        <el-form-item label="答案解析" prop="answerExplanation">
          <el-input
            v-model="form.answerExplanation"
            type="textarea"
            placeholder="请输入内容"
          />
        </el-form-item>
        <el-form-item label="主题" prop="subject">
          <el-input v-model="form.subject" placeholder="请输入主题" />
        </el-form-item>
        <el-form-item label="题目来源" prop="source">
          <el-input v-model="form.source" placeholder="请输入题目来源" />
        </el-form-item>
        <!-- <el-form-item label="审核状态" prop="auditStatus">
          <el-radio-group v-model="form.auditStatus">
            <el-radio
              v-for="dict in sys_common_status"
              :key="dict.value"
              :label="dict.value"
              >{{ dict.label }}</el-radio
            >
          </el-radio-group>
        </el-form-item>
        <el-form-item label="审核意见" prop="auditOpinion">
          <el-input
            v-model="form.auditOpinion"
            type="textarea"
            placeholder="请输入内容"
          />
        </el-form-item> -->
        <template v-if="form.questionType === 'multiple-choice' || form.questionType === 'single-choice'">
          <el-divider content-position="center">选项信息</el-divider>
          <el-row :gutter="10" class="mb8">
            <el-col :span="1.5">
              <el-button type="primary" icon="Plus" @click="handleAddChoiceOption"
                >添加</el-button
              >
            </el-col>
            <el-col :span="1.5">
              <el-button
                type="danger"
                icon="Delete"
                @click="handleDeleteChoiceOption"
                >删除</el-button
              >
            </el-col>
          </el-row>
          <el-table
            :data="choiceOptionList"
            :row-class-name="rowChoiceOptionIndex"
            @selection-change="handleChoiceOptionSelectionChange"
            ref="choiceOption"
          >
            <el-table-column type="selection" width="50" align="center" />
            <el-table-column
              label="选项字母"
              prop="optionLetter"
              width="80"
            >
              <template #default="scope">
                {{ scope.row.optionLetter }}
              </template>
            </el-table-column>
            <el-table-column label="选项内容" prop="optionContent" width="500">
              <template #default="scope">
                <el-input
                  v-model="scope.row.optionContent"
                  placeholder="请输入选项内容"
                />
              </template>
            </el-table-column>
            <el-table-column label="是否正确" prop="isCorrect" width="150">
              <template #default="scope">  <el-select
                v-model="scope.row.isCorrect"
                placeholder="请选择是否正确"
                clearable
              >
                <el-option
                  v-for="dict in sys_yes_no"
                  :key="dict.value"
                  :label="dict.label"
                  :value="dict.value"
                ></el-option>
              </el-select></template>
            </el-table-column>
          </el-table>
        </template>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="Question">
import {
  listQuestion,
  getQuestion,
  delQuestion,
  addQuestion,
  updateQuestion,
} from "@/api/business/question";

const { proxy } = getCurrentInstance();
const { question_type, sys_common_status, difficulty_level, sys_yes_no,exam_question_type } =
  proxy.useDict(
    "question_type",
    "sys_common_status",
    "difficulty_level",
    "sys_yes_no",
    "exam_question_type"
  );

const questionList = ref([]);
const choiceOptionList = ref([]);
const open = ref(false);
const loading = ref(true);
const showSearch = ref(true);
const ids = ref([]);
const checkedChoiceOption = ref([]);
const single = ref(true);
const multiple = ref(true);
const total = ref(0);
const title = ref("");

const data = reactive({
  form: {},
  queryParams: {
    pageNum: 1,
    pageSize: 10,
    questionType: null,
    questionContent: null,
    difficultyLevel: null,
    auditStatus: null,
  },
  rules: {
    questionType: [
      { required: true, message: "题目类型不能为空", trigger: "change" },
    ],
    questionContent: [
      { required: true, message: "题目内容不能为空", trigger: "blur" },
    ],
    difficultyLevel: [
      { required: true, message: "题目难度不能为空", trigger: "change" },
    ],
    score: [{ required: true, message: "题目分值不能为空", trigger: "blur" }],
    auditStatus: [
      { required: true, message: "审核状态不能为空", trigger: "change" },
    ],
  },
});

const { queryParams, form, rules } = toRefs(data);

/** 查询题目列表 */
function getList() {
  loading.value = true;
  listQuestion(queryParams.value).then((response) => {
    questionList.value = response.rows;
    total.value = response.total;
    loading.value = false;
  });
}

// 取消按钮
function cancel() {
  open.value = false;
  reset();
}

// 表单重置
function reset() {
  form.value = {
    id: null,
    questionType: null,
    questionContent: null,
    difficultyLevel: null,
    correctAnswer: null,
    answerExplanation: null,
    subject: null,
    score: null,
    source: null,
    auditStatus: null,
    auditOpinion: null,
    createTime: null,
    updateTime: null,
  };
  choiceOptionList.value = [];
  proxy.resetForm("questionRef");
}

/** 搜索按钮操作 */
function handleQuery() {
  queryParams.value.pageNum = 1;
  getList();
}

/** 重置按钮操作 */
function resetQuery() {
  proxy.resetForm("queryRef");
  handleQuery();
}

// 多选框选中数据
function handleSelectionChange(selection) {
  ids.value = selection.map((item) => item.id);
  single.value = selection.length != 1;
  multiple.value = !selection.length;
}

/** 新增按钮操作 */
function handleAdd() {
  reset();
  open.value = true;
  title.value = "添加题目";
}

/** 修改按钮操作 */
function handleUpdate(row) {
  reset();
  const _id = row.id || ids.value;
  getQuestion(_id).then((response) => {
    form.value = response.data;
    choiceOptionList.value = response.data.choiceOptionList;
    open.value = true;
    title.value = "修改题目";
  });
}

/** 提交按钮 */
function submitForm() {
  proxy.$refs["questionRef"].validate((valid) => {
    if (valid) {
      form.value.choiceOptionList = choiceOptionList.value;
      if (form.value.id != null) {
        updateQuestion(form.value).then((response) => {
          proxy.$modal.msgSuccess("修改成功");
          open.value = false;
          getList();
        });
      } else {
        addQuestion(form.value).then((response) => {
          proxy.$modal.msgSuccess("新增成功");
          open.value = false;
          getList();
        });
      }
    }
  });
}

/** 删除按钮操作 */
function handleDelete(row) {
  const _ids = row.id || ids.value;
  proxy.$modal
    .confirm('是否确认删除题目编号为"' + _ids + '"的数据项？')
    .then(function () {
      return delQuestion(_ids);
    })
    .then(() => {
      getList();
      proxy.$modal.msgSuccess("删除成功");
    })
    .catch(() => {});
}

/** 选项序号 */
function rowChoiceOptionIndex({ row, rowIndex }) {
  row.index = rowIndex + 1;
}

/** 选项添加按钮操作 */
function handleAddChoiceOption() {
  let obj = {};
  // 根据当前选项数量自动生成字母
  const letter = String.fromCharCode(65 + choiceOptionList.value.length); // 65是'A'的ASCII码
  obj.optionLetter = letter;
  obj.optionContent = "";
  obj.isCorrect = "";
  choiceOptionList.value.push(obj);
  updateCorrectAnswer();
}

/** 选项删除按钮操作 */
function handleDeleteChoiceOption() {
  if (checkedChoiceOption.value.length == 0) {
    proxy.$modal.msgError("请先选择要删除的选项数据");
  } else {
    const choiceOptions = choiceOptionList.value;
    const checkedChoiceOptions = checkedChoiceOption.value;
    choiceOptionList.value = choiceOptions.filter(function (item) {
      return checkedChoiceOptions.indexOf(item.index) == -1;
    });
    // 重新调整选项字母
    choiceOptionList.value.forEach((item, index) => {
      item.optionLetter = String.fromCharCode(65 + index);
    });
    updateCorrectAnswer();
  }
}

/** 更新正确答案 */
function updateCorrectAnswer() {
  if (form.value.questionType === 'single-choice' || form.value.questionType === 'multiple-choice') {
    const correctOptions = choiceOptionList.value
      .filter(item => item.isCorrect === '1')
      .map(item => item.optionLetter)
      .sort()
      .join(',');
    form.value.correctAnswer = correctOptions;
  }
}

// 监听选项变化
watch(choiceOptionList, (newVal) => {
  updateCorrectAnswer();
}, { deep: true });

// 监听题目类型变化
watch(() => form.value.questionType, (newVal) => {
  if (newVal !== 'single-choice' && newVal !== 'multiple-choice') {
    form.value.correctAnswer = '';
  } else {
    updateCorrectAnswer();
  }
});

/** 复选框选中数据 */
function handleChoiceOptionSelectionChange(selection) {
  checkedChoiceOption.value = selection.map((item) => item.index);
}

/** 导出按钮操作 */
function handleExport() {
  proxy.download(
    "business/question/export",
    {
      ...queryParams.value,
    },
    `question_${new Date().getTime()}.xlsx`
  );
}

/** 发布按钮操作 */
function handlePublish(row) {
  proxy.$modal
    .confirm('是否确认发布该题目？')
    .then(function () {
      const data = {
        id: row.id,
        auditStatus: '1'  // 设置为已审核状态
      };
      return updateQuestion(data);
    })
    .then(() => {
      getList();
      proxy.$modal.msgSuccess("发布成功");
    })
    .catch(() => {});
}

getList();
</script>
